jasquat 7515519bc9 Squashed 'SpiffWorkflow/' changes from 9d597627..d9fcd45a
d9fcd45a Updating release numbers
e0d04877 Merge pull request #251 from sartography/bugfix/make-data-objects-available-to-prescripts
7d260c36 Merge pull request #252 from sartography/bug/data_object_serializer_fix
3de54d97 Fixing a failing test.
27c5d3e1 A minor fix during deserialization to avoid issues for some users that upgraded between official releases.
250311d6 copy data objects before prescript execution

git-subtree-dir: SpiffWorkflow
git-subtree-split: d9fcd45a384f8376a669cf58677564289d2c661c
2022-10-14 15:42:16 -04:00

45 lines
1.6 KiB
Python

from copy import deepcopy
from SpiffWorkflow.task import TaskState
from SpiffWorkflow.bpmn.specs .BpmnSpecMixin import BpmnSpecMixin
class SpiffBpmnTask(BpmnSpecMixin):
def __init__(self, wf_spec, name, prescript=None, postscript=None, **kwargs):
# WHy am I doing this instead of just calling super?
# Because I need to deal with multiple inheritance and the kwargs nightmare created by our parser design
BpmnSpecMixin.__init__(self, wf_spec, name, **kwargs)
self.prescript = prescript
self.postscript = postscript
@property
def spec_type(self):
return 'Spiff BPMN Task'
def execute_script(self, my_task, script):
try:
my_task.workflow.script_engine.execute(my_task, script)
except Exception as exc:
my_task._set_state(TaskState.WAITING)
raise exc
def get_payload(self, my_task, script, expr):
try:
data = deepcopy(my_task.data)
my_task.worklflow.script_engine.execute(my_task, script, data)
return my_task.workflow.script_engine._evaluate(expr, data)
except Exception as exc:
my_task._set_state(TaskState.WAITING)
raise exc
def _on_ready_hook(self, my_task):
super()._on_ready_hook(my_task)
if self.prescript is not None:
self.execute_script(my_task, self.prescript)
def _on_complete_hook(self, my_task):
if self.postscript is not None:
self.execute_script(my_task, self.postscript)
super()._on_complete_hook(my_task)